Governor-regulator.



c. W. CRAMBR.

GOVERNOR REGULATOR. APPLICATION FILED FEB. 24, 1909.

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CHARLES W. URAMER, OF MINNEAPGLIS, MINNESOTA.

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Application led February 24, 1909.

To all whom fit may concern:

Be it known that l, CHARLES 7. CRAMER, a citizen of the United States,residing at vinneapolisv` in the county of Hennepin and States ofMinnesota, have invented certain new and useful improvements inGovernor- Regulators; and l do hereby declare the following to be afull, clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

ifly invention has for its object to provide an improved governor forsteam engines, and to t-his end, it consists of lthe novel devices andcombinations of devices hereinafter described and deiined in the claims.

1n the accompanying drawings which illustrate the invention, likecharacters indicate like parts throughout the several views.

Referring to the drawings: Figure 1 is a view in elevation, illustratingthe invention applied to a governor, such as employed in connection witha Corliss engine; Fig. 2 is a side elevation of certain of the partsshown in Fig. 1, said parts being shown on a larger scale than in `ltig.1; Fig. 3 is a horizontal section taken on the line aito23 of Fig. 1;and llig. -t is a detail view in section taken on the line .rt-mt ofFig. Q, some parts being removed.

tlf the parts of the governor, the numeral 1 indicates the governorshaft which is mounted in the tubular bearing pedestal 2, and is drivenfrom the engine in the usual way through connections not shown. Thenumeral j indicates fly balls of the governor, the same baiug secured tothe lower ends of the arms el, pivotally attached at their upper ends tothe rotary shaft 1, and connected at their intermediate portions bylinks 5 to a rotary collar (S. This rotary collar G is rotativelymounted between the shoulders of a non-rotary sleeve 7, that sur--rounds the shaft 1 and is movable vertically in the pedestal 2, beingprovided with a radially extended stub 8 that. works in a slot 9 in thesaid pedestal. The stud S is connected by a rod 10 to one arm 11 of arock shaft 12, mounted in a suitable bearing on the pedestal 2. Thisshaft 12 is provided with an arm 13 that is alined with the arm 11, andat its other end, the said shaft is provided with diametrically extendedarms 1t that are connected to the upper ends of connecting rods 15. Therods 15 are connected in the usual way to the adjustable Specificationof Letters Patent.

Patented .Tune 15, 1909.

serial No. M9383. l

eccentrics or speed controlling` elements of the valve gear mechanismnot shown. The arm 13 is connected by a rod 1G to the customary dash potnot shown. The mechanism so far described, is that found in standardgovernor mechanisms of Corliss engines.

My invention provides a device which operates upon the governormechanism with a yielding force, and tends to hold the governor' set insome certain predetermined position. and hence, to maintain thepredetermined desired speed of the engine. This improved devicepreferabljT consists of a pair of opposing coiled springs that operatedirectly on a part carried by the connecting` rod 10. 1n the drawings,these coiled springs 1T are shown as mounted on a vertical rod S,secured at its upper and lower ends in bearing collars 19 suitablysecured on the pedestal Q. The ends of the rod 1S are threaded andprovided with spring adjusting nuts Q0, against which the said springs17 react. On the intermediate portion of the connecting rod 10, an arm21 is pivotally mounted between secured but adjustable collars 22. Thefree end of this arm 21 vis bifurcated and straddles the intern'iediateportion of the rod 18. Wlashers 23 loosely placed on the intermediateportion of the rod 18, bear against the upper and lower portions of thearm 21, and afford movable bases of reaction for the adjacent ends ofthe springs 1T.

The springs 17, as is evident, act in opposition to each other, and tendto maintain the arm 21, and hence, the connecting` rod 10 and VHy balls3, in some predetermined set position, but their tension, is not, ofcourse, sutiicient to overcome the action of centrifuforce and gravityupon the fly balls of the governor. They simply have a tendency to holdthe said fly balls set in some predetermined position, which positionwill, of course, be that which "is required to maintain the desiredspeed of the engine under normal working load. The said springstherefore, make the action of the governor more steady, and retard oryieldingly resist the movements of the governor fly balls from suchpredetermined positions.

It will be understood, that by adjustments of the nuts on the supportingrod 1S, or by adjustments of the collars 22 on the connecting rod 10,the predetermined engine speed which the opposing spring 17 will tend tomaintain, may be varied as desired.

The improved governor attachment, may,

as is evident, be very easily applied to stand- I ard forms of enginegovernors, and at small cost. In actual practice, this improved devicehas been found to very greatly increase the eiiiciency of the governorto which it has been applied.

What I claim is:

l. In a governor mechanism, the combination with a transmission rodmovable inthe direction of its length connected with the speedresponsive element of the governor mechanism, of a guide rod securedadjacentm to said connecting rod, a pair of opposing` springs on saidguide rod, and an arm movable with said connecting rod and subject tothe opposing action oi: said two springs, substantially as described.

2. In a governor mechanism, the combination with a transmission rodmovable in the direction of its length connected with the speedresponsive element of the governor mechanism, of a guide rod securedadjacent to said connecting rod, a pair of opposing springs on saidguide rod, an arm movable with said connecting rod and subject to theopposing action of said tivo springs, and nuts on said guide rods foradjusting said springs, substantially as described.

In testimony whereof I aiiix my signature in presence of two witnesses.

CHARLES W. CRAMER.

Witnesses:

ALICE J. Swanson, HARRY D. KiLGoRE.

